Luka is a Brazilian singer and songwriter from Porto Alegre, born in 1979. She starts playing guitar at the age of seven and, as Luciana Lima, performs from the age of 16 in bars and clubs in Rio Grande do Sul, accompanying herself on guitar and singing. She also appears at Planeta Atlântica, a major music festival in Brazil.

Her work is associated with pop and Brazilian music, and she is listed as a female vocalist. The information provided identifies her as a solo artist rather than a band, and places her career in the Brazilian singing and songwriting tradition.